Improvement of Processability of PCL and PBS Blend by Irradiation and its Biodegradability

Nugroho, Pramono; Mitomo, Hiroshi; Yoshii, Fumio; Kume, Tamikazu; Nishimura, Kenji

doi:10.1002/1439-2054(20010501)286:5<316::aid-mame316>3.0.co;2-n

Cited by 42 publications

(10 citation statements)

References 3 publications

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“…The morphology of the polymer blend plays a critical role in understanding the structure-property relationships between the blend components, and hence there has been much research on structure development in such blends. Several studies were conducted on evaluating the morphology of PCL/PBS blends by employing scanning electron microscopy (SEM) and polarized light optical microscopy (PLOM) [16,17,[19][20][21]27]. These blends were mostly prepared through melt blending and solution mixing methods.…”

Section: Pcl/pbs Blends 21 Morphologymentioning

confidence: 99%

“…Additionally, a wide range of material properties is within reach by merely changing the blend composition [11]. PCL was blended with various other biodegradable polymers in a number of studies [12][13][14][15][16][17][18][19][20][21][22]. Amongst various biodegradable polymers, PBS was the most interesting aliphatic polyester due to its relatively good melt processability, thermal and chemical resistance, biodegradability, and excellent mechanical properties, closely comparable to those of the widely-used polyethylene (PE) and polypropylene (PP) [4,5,[15][16][17][18][19][20][21][23][24][25][26][27][28][29][30][31][32][33][34][35][36].…”

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confidence: 99%

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Review on PCL, PBS, and PCL/PBS blends containing carbon nanotubes

Gumede¹,

Luyt²,

Müller³

2018

Express Polym. Lett.

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Abstract. Biodegradable polymers received considerable attention due to their contribution in the reduction of environmental concerns and the realization that global petroleum resources are finite. The development of double crystalline biobased blends such as poly(ε-caprolactone) (PCL) and poly(butylene succinate) (PBS) are particularly interesting because each component has an influence on the crystallization behaviour of the other component, and thus influences the strength and mechanical properties of a polymer blend. The lack of miscibility between PCL and PBS constitutes a bottleneck, and efforts have been made to improve the miscibility through the inclusion of copolymers. Having realized that incorporating conductive nanofillers such as carbon nanotubes (CNTs), (especially when the CNTs are functionalized or used as a masterbatch i.e., polycarbonate/MWCNTs masterbatch), into biopolymer matrices, can enhance the thermal and mechanical properties, as well as electrical and thermal conductivity, a lot of research was aimed at the production of bionanocomposites. This review paper discusses the properties of PCL, PBS, their blends, and their CNTs containing nanocomposites.

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Section: Pcl/pbs Blends 21 Morphologymentioning

confidence: 99%

mentioning

confidence: 99%

Review on PCL, PBS, and PCL/PBS blends containing carbon nanotubes

Gumede¹,

Luyt²,

Müller³

2018

Express Polym. Lett.

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“…Among these nanocomposites, POSS10-200 showed the highest T g of À30.6°C. These results revealed that network structures were more efficiently generated in the PCL/POSS nanocomposites via electron beam irradiation in the presence of a higher amount of the POSS, and thus resulted in an improved heat resistance and an increase in the T g of the PCL/POSS nanocomposites [21,29].…”

Section: Resultsmentioning

confidence: 99%

Preparation and characterization of crosslinked poly(ε-caprolactone)/polyhedral oligomeric silsesquioxane nanocomposites by electron beam irradiation

Choi

Jung

Kang

et al. 2012

Nuclear Instruments and Methods in Physics Research Section B:

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“…Blending offers advantages such as cost effectiveness and less time-consumption compared to the development of new monomers as a basis for new polymeric materials [4]. In order to improve the toughness of PBS, several authors blended it with PCL [5,6,7]. Generally, the authors reported that the tensile strength decreased as the PCL content increased in the blends, while the elongation at break and impact strength moderately increased with increasing PCL content.…”

Section: Introductionmentioning

confidence: 99%

Isothermal Crystallization Kinetics and Morphology of Double Crystalline PCL/PBS Blends Mixed with a Polycarbonate/MWCNTs Masterbatch

et al. 2019

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In this work, the 70/30 and 30/70 w/w polycaprolactone (PCL)/polybutylene succinate (PBS) blends and their corresponding PCL/PBS/(polycarbonate (PC)/multiwalled carbon nanotubes (MWCNTs) masterbatch) nanocomposites were prepared in a twin-screw extruder. The nanocomposites contained 1.0 and 4.0 wt% MWCNTs. The blends showed a sea-island morphology typical of immiscible blends. For the nanocomposites, three phases were formed: (i) The matrix (either PCL- or PBS-rich phase depending on the composition), (ii) dispersed polymer droplets of small size (either PCL- or PBS-rich phase depending on the composition), and (iii) dispersed aggregates of tens of micron sizes identified as PC/MWCNTs masterbatch. Atomic force microscopy (AFM) results showed that although most MWCNTs were located in the PC dispersed phase, some of them migrated to the polymer matrix. This is due to the partial miscibility and intimate contact at the interfaces between blend components. Non-isothermal differential scanning calorimetry (DSC) scans for the PCL/PBS blends showed an increase in the crystallization temperature (Tc) of the PCL-rich phase indicating a nucleation effect caused by the PBS-rich phase. For the nanocomposites, there was a decrease in Tc values. This was attributed to a competition between two effects: (1) The partial miscibility of the PC-rich and the PCL-rich and PBS-rich phases, and (2) the nucleation effect of the MWCNTs. The decrease in Tc values indicated that miscibility was the dominating effect. Isothermal crystallization results showed that the nanocomposites crystallized slower than the neat blends and the homopolymers. The introduction of the masterbatch generally increased the thermal conductivity of the blend nanocomposites and affected the mechanical properties.

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Improvement of Processability of PCL and PBS Blend by Irradiation and its Biodegradability

Cited by 42 publications

References 3 publications

Review on PCL, PBS, and PCL/PBS blends containing carbon nanotubes

Review on PCL, PBS, and PCL/PBS blends containing carbon nanotubes

Preparation and characterization of crosslinked poly(ε-caprolactone)/polyhedral oligomeric silsesquioxane nanocomposites by electron beam irradiation

Isothermal Crystallization Kinetics and Morphology of Double Crystalline PCL/PBS Blends Mixed with a Polycarbonate/MWCNTs Masterbatch

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